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13 lines
228 B
Plaintext
13 lines
228 B
Plaintext
abstract Geometry = Logic ** {
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fun
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Line, Point, Circle : Dom ;
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Intersect, Parallel : Ind -> Ind -> Atom ;
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Vertical : Ind -> Atom ;
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Centre : Ind -> Ind ;
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Horizontal : Pred1 ;
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Diverge : Pred1 ;
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Contain : Pred2 ;
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}
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